
Adjusting the hesitation point on your Siemens 331-2930 Powers Controls Pneumatic Damper Actuator is straightforward. Follow these steps to achieve the desired performance: First apply air pressure to the actuator until the actuator shaft moves to the required position. Second, adjust the cycle adjustment rods. Turn the locknuts on the cycle adjustment rods until they touch the lower housing and then lock them together. Remember to tighten the cycle adjustment nuts evenly for smooth, consistent operation. These steps will help you adjust the hesitation point to meet the specific needs of your HVAC system.


